Hi guys! It's me, Lexi. I'm so very excited to be pinch-hitting for Sarah while she's preoccupied with, oh, a little thing that ultimately involves bringing an amazing new person onto the planet. (Yay, Sarah! We're all thinking about you!) I promise to ply you with lots of health, food, and fitness news until Sarah's back. So check out this first item, which offers a surprising fact about food and depression....

Researchers from Spanish universities have found that eating trans-fats and saturated fats increases your risk for depression. They monitored people's diets and lifestyles for six years, and found that those who ingested more of the "bad" fats--the ones found in fast food, for example--"presented up to a 48% increase in the risk of depression when they were compared to participants who did not consume these fats."

Holy french fry! But there's good news: Those whose diets contained polyunsaturated fats were less likely to suffer from depression. Overall, this is really interesting news because it shows that the kinds of things we eat affect both our physical and mental wellbeing.

So what are some sources of good, unsaturated fats? So glad you asked:

Olive oil, which this study cited specifically. It's a monounsaturated fat, which also reduces overall cholesterol levels, while increasing levels of HDL or "good" cholesterol.

Avocados, which are another awesome source of monounsaturated fat.

Popcorn--yes, really!--also has monounsaturated fat (so long as you don't drown it in butter!).

Salmon, mackerel, and trout are all good sources of polyunsaturated fat, which is another "good" fat that helps reduce overall cholesterol levels.

Do you think about what kinds of fats you're eating? And are there foods that make you feel happier or more depressed than others?